RF Ranging Methods and Performance Limits for Sensor Localization

RF Ranging Methods and Performance Limits for Sensor Localization

Steven Lanzisera (University of California, Berkeley, USA) and Kristofer S.J. Pister (University of California, Berkeley, USA)
DOI: 10.4018/978-1-60566-396-8.ch004
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Abstract

Localization or geolocation of wireless sensors usually requires accurate estimates of the distance between nodes in the network. RF ranging techniques can provide these estimates through a variety of methods some of which are well suited to wireless sensor networks. Noise and multipath channels fundamentally limit the accuracy of range estimation, and a number of other implementation related phenomena further impact accuracy. This chapter explores these effects and selected mitigation techniques in the context of low power wireless systems.

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